Nail-transferring mechanism



May 20, 1930.

Filed Aug. 425,l 1927 lill..-

Patented May 20, 1930 UNITED STATES PATENT ori-lcs -J'OHN F. STANDISH, 0F WINTH-ROP, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE CMA- CHINERY CORPGRATION, OF PATERSON, NEW JERSEY, A CORPORATION F vNEW JERSEY NAIL-TRANSFERRING MECHANISM Appucation filed August 25, 1927.Y serial No. 215,385.

This invention relates to mechanism for transferring such objects as .nails from a receiving point, which may be at a nail-distribu- `tor or other source of supply, to a delivering point, as over the die-block of a heel-attaching machine.

In heeling machines employing mechanism of the character indicated above, and an V `example of which is furnished by the apparatus illustrated in Letters Patent of the United States No. 1,157,688, Glidden, October 26, 1915, a movable gate, which controls the delivery of the nails from t-he loader-block `which transfers them to the die-block of the heeler, is held normally closed by a latch against the tension of a spring. When the loader-block reaches the die-block, the gate is tripped to release the nails, either by engagement with a fixed member which fleXes and frees it from a stationary retaining-member, or by contact of a yieldable gate-latchwith such a tripping member. While such an arrangement Vis entirely satisfactory, so far as its operationis concerned,vit may be necessary to change the location of the tripping member when the work varies, as from bases with leather toplifts to bases with rubber lifts or half-heels. An object of my invention is to Aprovide for a control of the nail-delivery,`

which shall be universal in character, operating equally well without change for all classes of work. This obj ect I attain by combining with a nail-transferring member, or

Y. loader-block carried by a loader-arm, a mov- 3 able gate, for governing vthe delivery of nails therefrom, and a handle movable upon the member and by which itv may be moved be tween nail-receiving and nail-delivering positions, said handle carrying a latch for the gate. There is means, preferably consisting of a spring, for resisting the movement of the handle, and, when this resist-ance is overcome, the latch vis arranged to release the gate.V The nail-transferring and controlling devices thus constitute .a unit, which, as far as nail-delivery is concerned, is independent of surrounding elements. Therefore, no change in the tripping` arrangement is required for dilferences in the structure of the heellng apparatus or in the work performed upon it.

In the Vaccompanying drawing, showing a particular embodiment of this invention,

Fig.' l is a horizontal section taken ona plane j ust above a loading mechanism including lthe improved gate-Controlling means;

' Fig. I2 yis a front elevation of the 'loading mechanism in its nail-receiving position;

vFig. 3 is a similar view in the nail-delivering position; and

'Fig'. 4 is a broken side elevation of .the mechanism adjacent lthe loader-block.

At 10 appears the die-block of such a 'heelattaching machine as that Ydisclosed in the previously mentioned patent. At =12 is seen the foot-plate of a nail-distributor, while the numerals 14 and 16 designate vertical rods carried by the machine-frame. Mounted to oscillate about the rod 14 is a loader-arm 18, the outer, Venlarged end of which furnishes a frame for a loader-block 20 containing vertical openings 22 arranged to hold nails in accordance with one or more nailingdesigns. As shown in dotted lines in Fig. 1,the rod 16 furnishesa stop by which the `loading mechan'ism is positioned with its openings beneath those .in ,the foot-plate to receive nails therefrom. AIt is to'be understood that this invention is by no `means limited to employment. with nail-distributing apparatus, but is of equal .utility inconnection withhand-loading; A stop 24: locates the openings22 over the die-block-openings 25 forthedelivery of the nails. To temporarily retain the nails'in the openings 22 and to release't-hem for delivery, there is pivoted at 26 upon the arm `18 agate or shutter' 28, which is forced by a spring 30 c'lear of the loader-blockopen'ings, being latchedzb'eneath the :block toclose Athese openingsyby meanswhich will notwfbe describe IItis a common 'practice to provide, at the outer side of theloader-block frame`,a.tapped opening, into `,which may be screwed a handle by ,meansof whichthe-operator or his helper swings the loader-armlbetween its eXtreme positions. p Into such an opening in the frame-portion of .the arm 18 I insert a threaded stud 32 serving as asupport `and bearing for'a Yhandle 34. This handle vis carried upon an arm 36 depending from the stud, about which it has a limited movement of revolution. At opposite sides of the arm are substantially horizontal projections 38 and 40. The former has secured to it ahooked latch 42 adapted to engage the edge of the gate 28 and hold it in its nail-retaining relation. To this position of the latch, the arm 36 is urged in an anti-clockwise direction (Figs. 2 and 3) by a spring 44 seated in a cup 46 at the end of the projection 40 and abutting, at its upper extremity, against the loader-block frame. The tension of this spring may be adjusted by a screw 45.

Considering the operation of the mecha- `nism, when the loader-arm is in the position indicated in dotted lines in Fig. l, the gate has been forced, by contact with a fixed element carried by the frame, beneath the loader-blocl-openings and is there held by the latch 42. Desiring to transfer nails which have been delivered to the block-openings 22 to the die-block-openings of the heel-attaching machine, the operator, grasping the handle 84, swings the loader-arm in a clockwise lirection, as viewed in Fig. l of the drawings. In this movement, the spring 44 resists the revolution of the handle about the stud 32 until the loader-arm comes into contact with the stop 24, at which time the openings 22 are alined with those of the die-block. Since the loader-arm is now held against movement, the arm 36 turns somewhat, clockwise (Fig. 3), about the stud, compressing the spring 44 and lowering the latch 42 to release the gate. Upon this, the spring 3() acts to withdraw the gate from beneath the loaderblock-openings, permitting the nails to enter the die-block-openings. When the operator returns the loader-arm to its nail-receiving position, the pressure upon the spring 44 is relaxed and the latch 42 assumes its normal gate-engaging relation, so that when the loader-arm reaches the stop 16. and the gate is forced beneath the loader-block, the latch engages said gate to retain it. Since, as has been pointed out, the opening which receives the stud is already present in the loading mechanism of many heel-attaching machines, or may readily be made, this invention may be substituted for other arrangements conveniently and without calling for machine-work. As not only the gate and its latch, but also the means for governing release, are mounted to move upon the loader-arm, they are unaffected as to such release by the surrounding machine-structure, thus giving the mechanism a wide field of use.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. The combination with a nail-transferring member, of a movable nail-retaining gate, a handle arranged to move the transferring member and be movable upon said member, and a latch for the gate carried by the handle.

2. The combination with a nail-transferring member, of a movable nail-retaining gate, a handle arranged to move the transferring member and be movable upon said member, a latch for the gate carried by the handle, and means for resisting the movement of the handle upon the transferring member, the latch being arranged to release the gate when such resistance is overcome.

3. Loading mechanism comprising an oscillatory loader-arm, a loader-block carried by the arm, a gate for governing delivery from the block, a handle pivoted upon the arm, a latch for the gate carried by the handle, and a spring acting upon the handle to force the latch into co-operation with the gate. A

4. Loading mechanism comprising an oscillatory loader-arm, a nail-holding block carried by the arm, a. gate cooperating with the block, a spring arranged to move the gate to release the nails from the block, a stud projecting from the arm, a handle revoluble about the stud, and a latch for the gate carried by the handle. Y

5. Loading mechanism comprising an oscillatory loader-arm, a nail-holding block carried by the arm, a gate cooperating with the block, a spring arranged to move the gate to release the nails from the block, a stud projecting from the arm, a handle revoluble about the stud and having opposite projections, a latch for the gate carried by one of the projections and a spring interposed between the opposite projection and the arm.

6. In a heel-attaching machine, the combination with nailing mechanism including a die-block provided with nail-receiving openings, of loading mechanism including a blocl; having nail-holding openings and being movable for delivery to the die-block-openings, a handle arranged to move the loading mechanism, a gate arranged to open and close the loader-blocl-openings, a spring arranged to move the gate, and a latch for the gate movable on the loading mechanism and governed by the handle.

7. In a heel-attaching machine, the combination with nailing mechanism including a die-block provided with nail-receiving openings, of loading mechanism including a block having nail-holding openings and being movable for delivery to the die-block-openings, a handle arranged to move the loading mechanism, a gate arranged to open and close the loader-block-openings, a spring arranged to move the gate and free the block-openings, and a latch for the gate carried by the handle.

In testimony whereof I have signed my name to this specification.

JOHN F. STANDISH. 

